Prototype implementation of GET_OWN_PROPERTY intrinsic.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index e9b4573b54f7a5f5a145eb7836836879626628e3..95759e68734f5c4289e96da609ea1d87b9d9d720 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -1865,7 +1865,9 @@ class LoadDictionaryElementPlatformStub : public PlatformCodeStub {
 
 class KeyedLoadGenericStub : public HydrogenCodeStub {
  public:
-  explicit KeyedLoadGenericStub(Isolate* isolate) : HydrogenCodeStub(isolate) {}
+  explicit KeyedLoadGenericStub(Isolate* isolate, LoadIC::PropertyLookupMode lookup_mode) 
+    : HydrogenCodeStub(isolate),
+      lookup_mode_(lookup_mode) {}
 
   virtual Handle<Code> GenerateCode() V8_OVERRIDE;
 
@@ -1876,10 +1878,17 @@ class KeyedLoadGenericStub : public HydrogenCodeStub {
 
   virtual Code::Kind GetCodeKind() const { return Code::KEYED_LOAD_IC; }
   virtual InlineCacheState GetICState() const { return GENERIC; }
+  virtual ExtraICState GetExtraICState() const {
+      return LoadIC::ComputeExtraICState(NOT_CONTEXTUAL, lookup_mode_);
+  }
 
  private:
   Major MajorKey() const { return KeyedLoadGeneric; }
-  int NotMissMinorKey() const { return 0; }
+  int NotMissMinorKey() const {
+      return lookup_mode_ == LoadIC::NORMAL_LOOKUP ? 0 : 1; 
+  }
+
+  LoadIC::PropertyLookupMode lookup_mode_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyedLoadGenericStub);
 };